US8603583B2 - Embossing device, such as a cylinder or a sleeve - Google Patents

Embossing device, such as a cylinder or a sleeve Download PDF

Info

Publication number
US8603583B2
US8603583B2 US12/299,028 US29902807A US8603583B2 US 8603583 B2 US8603583 B2 US 8603583B2 US 29902807 A US29902807 A US 29902807A US 8603583 B2 US8603583 B2 US 8603583B2
Authority
US
United States
Prior art keywords
cylinder
supporting cylinder
photopolymer coating
axis
supporting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US12/299,028
Other versions
US20090136679A1 (en
Inventor
Chouaib Boukaftane
Hélène Biava
Christian Reinhart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MacDermid Graphics Solutions Europe SAS
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to MACDERMID PRINTING SOLUTIONS EUROPE SAS reassignment MACDERMID PRINTING SOLUTIONS EUROPE SAS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BIAVA, HELENE, BOUKAFTANE, CHOUAIB, REINHART, CHRISTIAN
Publication of US20090136679A1 publication Critical patent/US20090136679A1/en
Application granted granted Critical
Publication of US8603583B2 publication Critical patent/US8603583B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0717—Methods and means for forming the embossments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0717—Methods and means for forming the embossments
    • B31F2201/072—Laser engraving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0725—Hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0728—Material

Definitions

  • the invention relates to an embossing device, such as a cylinder or a sleeve, of the type including on its outer peripheral surface an embossing raised and recessed pattern, intended to be reproduced on a deformable planar substance, as well as to a method for making such an embossing device.
  • an embossing device such as a cylinder or a sleeve, of the type including on its outer peripheral surface an embossing raised and recessed pattern, intended to be reproduced on a deformable planar substance, as well as to a method for making such an embossing device.
  • Devices of this type are already known, which include metal embossing cylinders provided with a raised pattern, the engraving being achieved according to the knurling technique and this is therefore a relief obtained by plastic deformation of the metal of the cylinder.
  • the object of the invention is to overcome these drawbacks of the known embossing devices.
  • the embossing device is characterized in that the cylinder bears a photopolymer coating, the outer surface of which includes the embossing pattern.
  • FIGS. 1-4 illustrate four embodiments of the method for making an embossing cylinder device according to the invention.
  • FIG. 5 is a perspective view of an embossing cylinder device according to the invention.
  • FIG. 5 shows an embossing cylinder device 1 including a cylinder 2 which may be in metal, for example in steel, or in a composite material, surrounded by a coating 3 , the outer surface of which includes a pattern of raised areas 4 regularly distributed over the periphery.
  • the coating 3 includes a first base layer of resin 5 covering the cylinder and a main outer layer of resin 6 which provides the relief.
  • the primary base layer has the function of protecting the metal of the cylinder 2 against external aggressions and of increasing the adhesion of the main layer 6 on the cylinder.
  • the base resin layer covering the cylinder was crosslinked by exposing it to ultraviolet and/or visible light and the main resin layer 6 used as a photoresist is applied on the primary layer 5 and then imaged with a mask, for example a film produced in situ or of a CTP.
  • a mask for example a film produced in situ or of a CTP.
  • the main resin may also be directly applied on the metal by selecting a suitable resin composition.
  • the method illustrated in FIG. 1 provides application of the resin indicated in 8 onto the peripheral surface of the cylinder 2 , uniformity of the thickness of the layer is ensured with a doctor blade 9 which extends over the whole length of the cylinder.
  • the resin is provided by a resin feeding device noted as 10 , which is displaceable in the axial direction of the cylinder 2 , as this is indicated by the arrow F 1 .
  • the feeding device essentially includes a tank 11 and a tubular component 12 for outputting the resin 8 , the means for displacing the assembly 10 formed by the tank and the tube 12 may be of any nature known per se.
  • resin 8 is applied to the face of the cylinder 2 just above the doctor blade 9 , by rotating the cylinder in the direction of the arrow F 2 and by displacing the feeding device 10 in the axial direction as indicated by the arrow F 1 . It is the doctor blade 9 defining between it and the peripheral surface, a slot with a predetermined and uniform width over the length of the cylinder which provides a uniform thickness of the coating which will be subsequently treated in order to have the embossing pattern.
  • FIG. 2 illustrates another embodiment of the method according to the invention, the particularity of which lies in the fact that it uses, instead of the doctor blade 9 of the first embodiment, a pressure roller 14 which moves parallel to the axis of the cylinder in both directions, as this is indicated by the arrow F 3 .
  • the resin feeding device 10 which is of the same nature as in FIG. 1 , moves as before, according to the arrow F 1 .
  • the axial rectilinear movement of the pressure roller 14 , the rotary movement of the cylinder 2 and the axial rectilinear movement of the feeding device 10 have the result that the resin is deposited and uniformized as to thickness of the resin layer on the peripheral surface of the cylinder along the helicoidal line 15 illustrated in FIG. 2 .
  • FIG. 3 shows a third embodiment of the invention which uses as a member for equalizing the thickness of the resin layer on the cylinder 2 , another rotary cylinder 17 which is used as a counter-cylinder, the axis of rotation of which is parallel to the axis of rotation of the cylinder bearing the embossing layer but which is laterally displaceable so that the gap ⁇ 1 between the axes of the cylinders 2 and 17 is variable.
  • a slot 18 may be established with a predetermined width which determines the thickness of the resin layer between this cylinder and the cylinder 2 bearing the resin layer, the resin feeding device 10 applying the resin onto the peripheral surface of the cylinder 2 in a location just upstream from the slot.
  • the cylinder 17 rotates in the direction of the arrow F 4 , i.e. in the same direction as the cylinder 2 .
  • FIG. 4 further illustrates another embodiment of the method according to the invention, which differs from the one shown in FIG. 3 by the nature of the device for applying the resin.
  • the resin is applied to the peripheral surface of the cylinder 2 by soaking in a resin bath 20 which extends over the whole length of the cylinder and into which a portion of the periphery engages to a predetermined depth so that when the periphery of the cylinder passes through this bath, resin adheres to this surface, the thickness of the applied resin layer being determined by the width 1 of the slot 18 existing between the cylinder 2 and the counter-cylinder 17 .
  • the making of the embossing layer is obtained via a liquid or hot slurry route before the crosslinking intended to produce the embossing pattern.
  • a type of resin which is based on polyester, polyether, polyurethane, or other polymer, or combinations, urethane or the like, is used.
  • the reactive groups are epoxy, (ME) acrylates, oxetanes, vinylether, which allow photopolymerization via a radical or cation route.
  • the resin will be selected so that it is compatible with a temperature of at least 140° C. after complete crosslinking, a double crosslinking system should be possible and post-baking may be contemplated if required.
  • the resin may advantageously be used in a structural composite based on glass or carbon fibers, and a combination with layers of other materials or fiber strengtheners via a specialized adhesive should be possible.
  • the pure resin As for the physical properties of the pure resin, it has a toughness as high as possible. Young's modulus is comprised between 800 and 2,000 and preferably larger than 1,500 MPa. Resistance to wear is high, as well as resistance to impacts and mechanical overloads. Another requirement concerns the absence of generation of static electricity by contact or by friction. The resin should provide anti-adherence at the surface, i.e., there must be an absence of any accumulation of particles in contact during the operation.
  • the photopolymer composition As for the photopolymer composition to be applied as a coat to the metal cylinder or to the cylindrical composite sleeve, for which photo-polymerization may be achieved by means of a cationic or radical (UV or visible) system, it has a viscosity allowing a coating between 40° C. and 60° C.
  • the coating composition will be deposited at a thickness from 0.1 to 2 mm, crosslinkable in its bulk, deposited endlessly.
  • the composition may be applied in a larger crosslinkable thickness twice or more, and a system promoting adherence between the layers must then be provided.
  • the relief of the embossing layer may be developed for example by means of a mask and ultraviolet light of a wavelength for example of 370 nm. The relief has a depth from 0.2 to 1.2 mm or more, if on two levels.
  • a relief with more than one level may be achieved by means of superposed layers containing photo-initiators absorbing in different regions, complementary masses per level and inserted filters.
  • the relief may be developed to an intermediate crosslinking stage of the resin, for example after less than one minute of exposure.
  • the composition has a hardness above 75 Shore D and an elastic modulus above 1,000 MPa at room temperature and remaining above 500 MPa right up to 80° C.
  • the composition has elastic and mechanical characteristics compatible with loads above 100 kg/cm linear and rates above 100 m/min.
  • the resin is resistant to impacts and to abrasion and may reproduce embossing but also complexing or laminating, locally on a multilayer non-woven tissue either entangled or not, by pressing it onto an elastomeric counterpart with a hardness between 50 and 70 Shore A.
  • the surface after photopolymerization and cleaning has sufficient anti-adherence towards paper fluffs in order to prevent subsequent fouling during operation.
  • Photopolymer formulations will be given hereafter as a non-limiting example, which may be used within the scope of the invention for low to high viscosity compositions, based on resin with dynamical properties and abrasive strength, applicable to embossing, but also applicable for composite strengtheners with glass non-woven or woven tissue.
  • the composition includes 100 parts by weight of polyurethane acrylate, an oligomer of the polyether type, an aliphatic polyester urethane diacrylate as marketed under the name CN981 by Cray Valley, 25 parts by weight of a triacrylate monomer: tris(2-hydroxyethyl) isocyanurate triacrylate, of the SR 368 type marketed by Cray Valley, and an acyl phosphine type photo-initiator such as BAPO, Irgacure 819, TPO Darocure, in an amount from 0.05% to 2% by weight of the photopolymer.
  • polyurethane acrylate an oligomer of the polyether type
  • an aliphatic polyester urethane diacrylate as marketed under the name CN981 by Cray Valley
  • This formulation is crosslinkable in a thickness from 0.1 to 3 mm in UV light with a peak around 380 nm.
  • the formula which has just been given is respectively added with 3 to 10 parts by weight of submicroscopic pyrogenation silica (200 m 2 /g).
  • the photopolymer system notably for adherence onto a rigid support includes 50 parts by weight of a polyurethane oligomer of the CN981 type, 50 parts by weight of an epoxy acrylate oligomer, a difunctional bisphenol A acrylate of the CN104 type from Cray Valley, 10 parts by weight of a trifunctional monomer of the SR368 type, and a triacrylate monomer, an adhesion promoter of the acid type such as SR9051 of Cray Valley, which provides adherence onto a metal base or a thermally crosslinked epoxy composite.
  • Another formula includes 50 parts by weight of CN981, 50 parts by weight of CN104, 20 parts by weight of SR368, 5 parts by weight of SR9051 and a photo-initiator marketed under the name of BAPO in a maximum amount of 0.05% by weight of the photocomposition.
  • a resin with a mono- or bi-directional glass woven strengthener which may be crosslinked by radiation in a thickness from 0.3 to 2 mm, which may be used as a composite sleeve for supporting endless printing forms or elastomeric forms with replacement of cylinders in an industrial application, is also used.
  • Another formula may then comprise 50 parts by weight of CN981, 50 parts by weight of CN104, tricyclodecane dimethanol diacrylate of the type marketed by Sartomer under the name of 833S and 0.1% by weight of the photocomposition of the BAPO photo-initiator.
  • the formulated photopolymer ensures good compromise as regards static loads and anti-adherence towards the substrate to be embossed. It is sufficiently transparent to light and may react to light over depths from 0.4 to 2 mm by means of a radical or cationic process.
  • the invention involves a system for adhering this photopolymer onto metal or an epoxy composite loaded with glass or another substance, for example carbon or aramide.
  • the invention provides the use of a very viscous and non-tacky resin at room temperature and which may be applied by casting it at a temperature below 80° C.
  • a regular endless deposit of this composition is obtained on a support of known diameter, which may be fixed or rotating depending on the characteristics of viscosity of the composition.
  • This deposit may have a thickness to within +/ ⁇ 1/100 on cylindrical tables up to a length of 4 meters and to an average diameter of 800 mm.
  • Several layers with one or two photopolymerization steps may be made with two types of photo-initiators at different wavelengths, with two relief height levels or two modulus levels between lamination areas and imprint area. There is thus the possibility of making a full sublayer with a higher module, possibly diffusing light or being absorbent in order to influence the shape of the relief.
  • the invention provides the possibility of depositing an endless mask by a digital method with direct drawing by means of a wax or ink jet, or ablated according to the pattern after uniform deposit of the mask.
  • the etching may be direct etching with an IR laser in order to ablate what is not the relief or may be the direct creation of the relief via an invisible or ultraviolet light photochemical route with leaching of the residual resin via a thermal route or a solvent, the light advantageously being of a wavelength preferably between 395 and 410 nm, with cationic polymerization with or without any sensitizer to the selected wavelength or radical polymerization, for a positive relief design.
  • the purchase and maintenance cost of the laser system on a specific piece of equipment may be limited.
  • the invention it is possible to obtain an accurate relief in depth, with an adjusted shape, for example sloped, for good mechanical anchoring. It is possible to adjust the anchoring of the relief by a slope, by introducing specific ingredients, of reflectivity/absorption of the substrate or, in the case of a laser beam, by adjusting this beam.
  • the invention provides a piece of equipment with which all the steps except for the final cleaning may be performed endlessly.
  • the production time on this piece of equipment is less than 4 hours, the photopolymerization part taking less than half an hour.
  • the invention thus proposes a method which does not require final machining, while however guaranteeing a dimensional tolerance with etching of +/ ⁇ 2/100 th and a smooth surface promoting anti-adherence as regards debris of paper fibers.
  • embossing cylinders may be made, for which the outer relief layer intended to produce the imprint in the substance to be deformed is formed by a resin based on epoxy, urethane or the like, which makes the embossing cylinders according to the invention perfectly suitable when the question is of frequently renewing collections and producing limited series of prints.
  • the embossing relief may be easily made by means of UV-visible laser light or by non-coherent UV-visible light for example.
  • the invention may be applied to the embossing of paper or wallpaper, of cellulose wadding tissue, of films and leather articles, multilayer complex packages, to the marking and scoring of paper and packages, to gilding and to assimilated methods and the like.
  • the invention provides considerable advantages, such as rapidity and simplicity in producing the embossing cylinders and reduction in power consumption and handling.
  • a coating layer with uniform thickness as described and illustrated in the figures onto a rotating cylinder, it is possible to obtain a cylindrical part provided with a photopolymer layer of a thickness between 0.1 and 3 mm.
  • the photopolymer layer is crosslinkable notably in ultraviolet light at wavelengths comprised between 350 nm and 405 nm, with an insolation time between 10 seconds and 1 minute.
  • This crosslinking method may be either used with rotation or with rotation and longitudinal displacement of the support of the cylindrical part, or with rotation of the cylindrical part and longitudinal displacement of the irradiation system. It is possible to use a mask for creating a relief image directly on the composite structure.
  • the photopolymer layer may be made on a cylinder or on a metal sleeve or on a composite sleeve fitted onto a cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

An embossing device, such as a cylinder or a sleeve, includes on an outer peripheral surface an embossing raised and recessed pattern, to be reproduced on a deformable planar substrate. The cylinder or sleeve bears a photopolymer coating the outer surface which has the raised embossing pattern.

Description

FIELD OF THE INVENTION
The invention relates to an embossing device, such as a cylinder or a sleeve, of the type including on its outer peripheral surface an embossing raised and recessed pattern, intended to be reproduced on a deformable planar substance, as well as to a method for making such an embossing device.
BACKGROUND
Devices of this type are already known, which include metal embossing cylinders provided with a raised pattern, the engraving being achieved according to the knurling technique and this is therefore a relief obtained by plastic deformation of the metal of the cylinder.
Instead of purely mechanical knurling, use of the knurling technology of the mechano-chemical type is also known.
Providing a hard polymeric coating on the cylinder and producing the relief by means of a laser, are further known.
Now, in the field of application of embossing, renewal of collections and limited series of prints generate an increasing need for designs giving rise to new requirements, i.e. reduced cost, and higher rapidity for producing embossing designs. Conversely, the expected lifetime in terms of achieved footage may be reduced.
Known embossing devices, because of their costly and complex manufacturing method, are unable to meet these requirements.
SUMMARY OF THE INVENTION
The object of the invention is to overcome these drawbacks of the known embossing devices.
In order to achieve this object, the embossing device according to the invention is characterized in that the cylinder bears a photopolymer coating, the outer surface of which includes the embossing pattern.
BRIEF DESCRIPTION OF DRAWING FIGURES
The invention will be better understood and other objects, characteristics, details and advantages thereof, will become more clearly apparent during the explanatory description which follows, made with reference to the appended schematic drawings only given as an example illustrating several embodiments of the invention and wherein:
FIGS. 1-4 illustrate four embodiments of the method for making an embossing cylinder device according to the invention; and
FIG. 5 is a perspective view of an embossing cylinder device according to the invention.
 DETAILED DESCRIPTION
FIG. 5 shows an embossing cylinder device 1 including a cylinder 2 which may be in metal, for example in steel, or in a composite material, surrounded by a coating 3, the outer surface of which includes a pattern of raised areas 4 regularly distributed over the periphery. It is advantageous that the coating 3 includes a first base layer of resin 5 covering the cylinder and a main outer layer of resin 6 which provides the relief. The primary base layer has the function of protecting the metal of the cylinder 2 against external aggressions and of increasing the adhesion of the main layer 6 on the cylinder. The base resin layer covering the cylinder was crosslinked by exposing it to ultraviolet and/or visible light and the main resin layer 6 used as a photoresist is applied on the primary layer 5 and then imaged with a mask, for example a film produced in situ or of a CTP. Of course, the main resin may also be directly applied on the metal by selecting a suitable resin composition.
With reference to FIGS. 1-4, four methods for applying the main resin layer 6, will be described hereafter, wherein the application may be directly carried out on the cylinder 2 or on an intermediate layer such as the primary layer 5.
The method illustrated in FIG. 1 provides application of the resin indicated in 8 onto the peripheral surface of the cylinder 2, uniformity of the thickness of the layer is ensured with a doctor blade 9 which extends over the whole length of the cylinder. The resin is provided by a resin feeding device noted as 10, which is displaceable in the axial direction of the cylinder 2, as this is indicated by the arrow F1. The feeding device essentially includes a tank 11 and a tubular component 12 for outputting the resin 8, the means for displacing the assembly 10 formed by the tank and the tube 12 may be of any nature known per se.
From the figure, it emerges that for producing the coating 6, resin 8 is applied to the face of the cylinder 2 just above the doctor blade 9, by rotating the cylinder in the direction of the arrow F2 and by displacing the feeding device 10 in the axial direction as indicated by the arrow F1. It is the doctor blade 9 defining between it and the peripheral surface, a slot with a predetermined and uniform width over the length of the cylinder which provides a uniform thickness of the coating which will be subsequently treated in order to have the embossing pattern.
FIG. 2 illustrates another embodiment of the method according to the invention, the particularity of which lies in the fact that it uses, instead of the doctor blade 9 of the first embodiment, a pressure roller 14 which moves parallel to the axis of the cylinder in both directions, as this is indicated by the arrow F3. On the other hand, the resin feeding device 10 which is of the same nature as in FIG. 1, moves as before, according to the arrow F1. The axial rectilinear movement of the pressure roller 14, the rotary movement of the cylinder 2 and the axial rectilinear movement of the feeding device 10 have the result that the resin is deposited and uniformized as to thickness of the resin layer on the peripheral surface of the cylinder along the helicoidal line 15 illustrated in FIG. 2.
FIG. 3 shows a third embodiment of the invention which uses as a member for equalizing the thickness of the resin layer on the cylinder 2, another rotary cylinder 17 which is used as a counter-cylinder, the axis of rotation of which is parallel to the axis of rotation of the cylinder bearing the embossing layer but which is laterally displaceable so that the gap Δ1 between the axes of the cylinders 2 and 17 is variable. By the relative displacement of the counter-cylinder 17, a slot 18 may be established with a predetermined width which determines the thickness of the resin layer between this cylinder and the cylinder 2 bearing the resin layer, the resin feeding device 10 applying the resin onto the peripheral surface of the cylinder 2 in a location just upstream from the slot. It should be noted that the cylinder 17 rotates in the direction of the arrow F4, i.e. in the same direction as the cylinder 2.
FIG. 4 further illustrates another embodiment of the method according to the invention, which differs from the one shown in FIG. 3 by the nature of the device for applying the resin. In the case of FIG. 4, the resin is applied to the peripheral surface of the cylinder 2 by soaking in a resin bath 20 which extends over the whole length of the cylinder and into which a portion of the periphery engages to a predetermined depth so that when the periphery of the cylinder passes through this bath, resin adheres to this surface, the thickness of the applied resin layer being determined by the width 1 of the slot 18 existing between the cylinder 2 and the counter-cylinder 17.
From the different application possibilities of the invention, it emerges that the making of the embossing layer is obtained via a liquid or hot slurry route before the crosslinking intended to produce the embossing pattern. Generally, a type of resin which is based on polyester, polyether, polyurethane, or other polymer, or combinations, urethane or the like, is used. The reactive groups are epoxy, (ME) acrylates, oxetanes, vinylether, which allow photopolymerization via a radical or cation route. The resin will be selected so that it is compatible with a temperature of at least 140° C. after complete crosslinking, a double crosslinking system should be possible and post-baking may be contemplated if required. Provision is made for the possibility of incorporating fillers and/or flexibilizers into the resin in order to modify rheology and physical properties. The resin may advantageously be used in a structural composite based on glass or carbon fibers, and a combination with layers of other materials or fiber strengtheners via a specialized adhesive should be possible.
As for the physical properties of the pure resin, it has a toughness as high as possible. Young's modulus is comprised between 800 and 2,000 and preferably larger than 1,500 MPa. Resistance to wear is high, as well as resistance to impacts and mechanical overloads. Another requirement concerns the absence of generation of static electricity by contact or by friction. The resin should provide anti-adherence at the surface, i.e., there must be an absence of any accumulation of particles in contact during the operation.
As for the photopolymer composition to be applied as a coat to the metal cylinder or to the cylindrical composite sleeve, for which photo-polymerization may be achieved by means of a cationic or radical (UV or visible) system, it has a viscosity allowing a coating between 40° C. and 60° C. The coating composition will be deposited at a thickness from 0.1 to 2 mm, crosslinkable in its bulk, deposited endlessly. The composition may be applied in a larger crosslinkable thickness twice or more, and a system promoting adherence between the layers must then be provided. The relief of the embossing layer may be developed for example by means of a mask and ultraviolet light of a wavelength for example of 370 nm. The relief has a depth from 0.2 to 1.2 mm or more, if on two levels.
A relief with more than one level may be achieved by means of superposed layers containing photo-initiators absorbing in different regions, complementary masses per level and inserted filters. The relief may be developed to an intermediate crosslinking stage of the resin, for example after less than one minute of exposure.
The composition has a hardness above 75 Shore D and an elastic modulus above 1,000 MPa at room temperature and remaining above 500 MPa right up to 80° C. The composition has elastic and mechanical characteristics compatible with loads above 100 kg/cm linear and rates above 100 m/min. The resin is resistant to impacts and to abrasion and may reproduce embossing but also complexing or laminating, locally on a multilayer non-woven tissue either entangled or not, by pressing it onto an elastomeric counterpart with a hardness between 50 and 70 Shore A. The surface after photopolymerization and cleaning has sufficient anti-adherence towards paper fluffs in order to prevent subsequent fouling during operation.
Photopolymer formulations will be given hereafter as a non-limiting example, which may be used within the scope of the invention for low to high viscosity compositions, based on resin with dynamical properties and abrasive strength, applicable to embossing, but also applicable for composite strengtheners with glass non-woven or woven tissue. According to one formula, the composition includes 100 parts by weight of polyurethane acrylate, an oligomer of the polyether type, an aliphatic polyester urethane diacrylate as marketed under the name CN981 by Cray Valley, 25 parts by weight of a triacrylate monomer: tris(2-hydroxyethyl) isocyanurate triacrylate, of the SR 368 type marketed by Cray Valley, and an acyl phosphine type photo-initiator such as BAPO, Irgacure 819, TPO Darocure, in an amount from 0.05% to 2% by weight of the photopolymer. This formulation is crosslinkable in a thickness from 0.1 to 3 mm in UV light with a peak around 380 nm. According to another formula, the formula which has just been given is respectively added with 3 to 10 parts by weight of submicroscopic pyrogenation silica (200 m2/g).
According to another formula, the photopolymer system notably for adherence onto a rigid support includes 50 parts by weight of a polyurethane oligomer of the CN981 type, 50 parts by weight of an epoxy acrylate oligomer, a difunctional bisphenol A acrylate of the CN104 type from Cray Valley, 10 parts by weight of a trifunctional monomer of the SR368 type, and a triacrylate monomer, an adhesion promoter of the acid type such as SR9051 of Cray Valley, which provides adherence onto a metal base or a thermally crosslinked epoxy composite.
Another formula includes 50 parts by weight of CN981, 50 parts by weight of CN104, 20 parts by weight of SR368, 5 parts by weight of SR9051 and a photo-initiator marketed under the name of BAPO in a maximum amount of 0.05% by weight of the photocomposition.
Within the scope of the invention, a resin with a mono- or bi-directional glass woven strengthener which may be crosslinked by radiation in a thickness from 0.3 to 2 mm, which may be used as a composite sleeve for supporting endless printing forms or elastomeric forms with replacement of cylinders in an industrial application, is also used. Another formula may then comprise 50 parts by weight of CN981, 50 parts by weight of CN104, tricyclodecane dimethanol diacrylate of the type marketed by Sartomer under the name of 833S and 0.1% by weight of the photocomposition of the BAPO photo-initiator.
From the description of the invention which has just been made, it emerges that the latter involves the development of a photocomposition with a determined and adjusted modulus depending on the requirement of the application. The formulated photopolymer ensures good compromise as regards static loads and anti-adherence towards the substrate to be embossed. It is sufficiently transparent to light and may react to light over depths from 0.4 to 2 mm by means of a radical or cationic process. The invention involves a system for adhering this photopolymer onto metal or an epoxy composite loaded with glass or another substance, for example carbon or aramide. The invention provides the use of a very viscous and non-tacky resin at room temperature and which may be applied by casting it at a temperature below 80° C. By means of the invention, a regular endless deposit of this composition is obtained on a support of known diameter, which may be fixed or rotating depending on the characteristics of viscosity of the composition. This deposit may have a thickness to within +/− 1/100 on cylindrical tables up to a length of 4 meters and to an average diameter of 800 mm. Several layers with one or two photopolymerization steps may be made with two types of photo-initiators at different wavelengths, with two relief height levels or two modulus levels between lamination areas and imprint area. There is thus the possibility of making a full sublayer with a higher module, possibly diffusing light or being absorbent in order to influence the shape of the relief. The invention provides the possibility of depositing an endless mask by a digital method with direct drawing by means of a wax or ink jet, or ablated according to the pattern after uniform deposit of the mask. The etching may be direct etching with an IR laser in order to ablate what is not the relief or may be the direct creation of the relief via an invisible or ultraviolet light photochemical route with leaching of the residual resin via a thermal route or a solvent, the light advantageously being of a wavelength preferably between 395 and 410 nm, with cationic polymerization with or without any sensitizer to the selected wavelength or radical polymerization, for a positive relief design. In this case, it is further possible to work with liquid resins at room temperatures. By using a laser diode with violet to blue light, the purchase and maintenance cost of the laser system on a specific piece of equipment may be limited. With the invention it is possible to obtain an accurate relief in depth, with an adjusted shape, for example sloped, for good mechanical anchoring. It is possible to adjust the anchoring of the relief by a slope, by introducing specific ingredients, of reflectivity/absorption of the substrate or, in the case of a laser beam, by adjusting this beam.
The invention provides a piece of equipment with which all the steps except for the final cleaning may be performed endlessly. The production time on this piece of equipment is less than 4 hours, the photopolymerization part taking less than half an hour.
The invention thus proposes a method which does not require final machining, while however guaranteeing a dimensional tolerance with etching of +/− 2/100th and a smooth surface promoting anti-adherence as regards debris of paper fibers.
From the preceding description of the invention, it emerges that with the latter embossing cylinders may be made, for which the outer relief layer intended to produce the imprint in the substance to be deformed is formed by a resin based on epoxy, urethane or the like, which makes the embossing cylinders according to the invention perfectly suitable when the question is of frequently renewing collections and producing limited series of prints. The embossing relief may be easily made by means of UV-visible laser light or by non-coherent UV-visible light for example. The invention may be applied to the embossing of paper or wallpaper, of cellulose wadding tissue, of films and leather articles, multilayer complex packages, to the marking and scoring of paper and packages, to gilding and to assimilated methods and the like.
The invention provides considerable advantages, such as rapidity and simplicity in producing the embossing cylinders and reduction in power consumption and handling. By applying a coating layer with uniform thickness as described and illustrated in the figures, onto a rotating cylinder, it is possible to obtain a cylindrical part provided with a photopolymer layer of a thickness between 0.1 and 3 mm.
It is possible to introduce wire or glass or glass and aramide woven strengtheners during impregnation, by draping or winding in multiple layers. The photopolymer layer is crosslinkable notably in ultraviolet light at wavelengths comprised between 350 nm and 405 nm, with an insolation time between 10 seconds and 1 minute. This crosslinking method may be either used with rotation or with rotation and longitudinal displacement of the support of the cylindrical part, or with rotation of the cylindrical part and longitudinal displacement of the irradiation system. It is possible to use a mask for creating a relief image directly on the composite structure. After exposure to light through a mask, cleaning with solvent or heating for reducing the viscosity of the non-crosslinked material is provided by driving out this material under a jet of compressed air or by suction with a suitable pump. Post-insolation is possible in order to achieve the desired mechanical properties. The photopolymer layer, either strengthened or not and calibrated, may be made on a cylinder or on a metal sleeve or on a composite sleeve fitted onto a cylinder.

Claims (12)

The invention claimed is:
1. A method for making an embossing device, said embossing device including, on an outer peripheral surface, a raised and recessed embossing pattern for reproduction on a planar and deformable substrate, the embossing device comprising a supporting cylinder and a crosslinked base resin layer disposed thereon, wherein a photopolymer coating is disposed on the crosslinked base resin layer, the method comprising the steps of:
a) applying a material forming the photopolymer coating onto the crosslinked base resin layer disposed on the supporting cylinder while the supporting cylinder rotates,
b) making uniform the thickness of the material applied to the supporting cylinder with a member, and
c) exposing the photopolymer coating, through a mask, to light to make the raised and recessed embossing pattern in the photopolymer coating.
2. The method according to claim 1, including displacing an application device parallel to the axis of the supporting cylinder, to apply the material of the photopolymer coating.
3. The method according to claim 2, wherein the member is a doctor blade extending along the supporting cylinder, parallel to the axis of the supporting cylinder, at a predetermined distance from the surface of the supporting cylinder, corresponding to the thickness of the photopolymer coating.
4. The method according to claim 1, wherein the member is a roller, the axis of rotation of which is parallel to the axis of rotation of the supporting cylinder and which is displaceable in axial translation along the supporting cylinder, parallel to the axis of the supporting cylinder, at a distance from the peripheral surface of the supporting cylinder corresponding to the thickness of the photopolymer coating.
5. The method according to claim 1, wherein the member is a smoothing cylinder, the axis of rotation of the smoothing cylinder is parallel to the axis of rotation of the supporting cylinder and is positioned so that a slot between the supporting and smoothing cylinders has a width which corresponds to the thickness of the photopolymer coating, and wherein the smoothing cylinder rotates in the same direction as the supporting cylinder.
6. The method according to claim 1, including applying the photopolymer coating material to the supporting cylinder by soaking in a bath of coating material, making thickness of the applied material uniform with a smoothing cylinder, the axis of rotation of the smoothing cylinder being parallel to the axis of the supporting cylinder and positioned so that a slot is between the supporting and smoothing cylinder has a width which corresponds to the thickness of the photopolymer coating.
7. The method according to claim 5, wherein the width of the slot is varied by changes in separation between the axes of rotations of the supporting and smoothing cylinders.
8. The method according to claim 1, wherein the material for forming the photopolymer coating comprises a crosslinkable resin based on epoxy or urethane.
9. The method according to claim 8, wherein the material for forming the photopolymer coating further comprises a filler selected from glass and carbon fibers.
10. The method according to claim 1, wherein the material for the photopolymer coating is selected to have a modulus adjusted in order to not generate a static electric charge and to be anti-adherent towards the substrate to be embossed.
11. The method according to claim 1, wherein the photopolymer coating is resistant to impact and abrasion.
12. The method according to claim 11, wherein the photopolymer coating has a hardness greater than 75 Shore D and an elastic modulus above 1,000 MPa at room temperature.
US12/299,028 2006-04-06 2007-04-02 Embossing device, such as a cylinder or a sleeve Expired - Fee Related US8603583B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0651239A FR2899502B1 (en) 2006-04-06 2006-04-06 EMBOSSING DEVICE, SUCH AS A CYLINDER OR SLEEVE
FR0651239 2006-04-06
FR06/51239 2006-04-06
PCT/FR2007/000563 WO2007118989A2 (en) 2006-04-06 2007-04-02 Embossing device, such as a cylinder or a sleeve

Publications (2)

Publication Number Publication Date
US20090136679A1 US20090136679A1 (en) 2009-05-28
US8603583B2 true US8603583B2 (en) 2013-12-10

Family

ID=37547029

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/299,028 Expired - Fee Related US8603583B2 (en) 2006-04-06 2007-04-02 Embossing device, such as a cylinder or a sleeve

Country Status (7)

Country Link
US (1) US8603583B2 (en)
EP (1) EP2007570B1 (en)
CN (1) CN101460298B (en)
DE (1) DE602007005467D1 (en)
ES (1) ES2342850T3 (en)
FR (1) FR2899502B1 (en)
WO (1) WO2007118989A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9946159B2 (en) 2016-03-29 2018-04-17 The United States Of America As Represented By The Secretary Of The Army Lithographic fragmentation technology

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007038278B4 (en) * 2007-08-08 2013-09-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mass transport and event control in systems with piezoelectrically activated droplet emission and combinations of carrier matrix and dosing agent
DE102007039949B3 (en) * 2007-08-23 2008-12-04 Flooring Technologies Ltd. Device for applying a suspension to a carrier plate
US8182982B2 (en) * 2008-04-19 2012-05-22 Rolith Inc Method and device for patterning a disk
US8518633B2 (en) 2008-01-22 2013-08-27 Rolith Inc. Large area nanopatterning method and apparatus
US8192920B2 (en) * 2008-04-26 2012-06-05 Rolith Inc. Lithography method
US20110210480A1 (en) * 2008-11-18 2011-09-01 Rolith, Inc Nanostructures with anti-counterefeiting features and methods of fabricating the same
US20110294913A1 (en) 2010-05-17 2011-12-01 Michael Zimmer Flexible material for surface adhesive rule
US9102818B2 (en) * 2010-05-17 2015-08-11 Highcon Systems Ltd. Method and system for surface adhesive rule technology
CN103097953A (en) 2010-08-23 2013-05-08 罗利诗公司 Mask for near-field lithography and fabrication the same
CN102553810B (en) * 2010-12-23 2015-01-21 四国化研(上海)有限公司 Method for forming pattern surfaces
CN102744917A (en) * 2011-05-09 2012-10-24 金红叶纸业集团有限公司 Embossing roller for paper product, toilet paper with embossing and multi-layer toilet paper product
JP5931180B2 (en) * 2011-05-11 2016-06-08 ヒューレット−パッカード・インデイゴ・ビー・ブイＨｅｗｌｅｔｔ−Ｐａｃｋａｒｄ Ｉｎｄｉｇｏ Ｂ．Ｖ． Embossing using printed embossed pattern
TW201302318A (en) * 2011-05-16 2013-01-16 Sumitomo Chemical Co Coating device
FI123186B (en) * 2011-06-23 2012-12-14 Metso Paper Inc The roll coating
CN102602127B (en) * 2012-03-09 2014-04-09 方平 Blue-violet laser carving system and engraving method thereof
US20140050814A1 (en) * 2012-08-17 2014-02-20 Gary Yih-Ming Kang Embossing assembly and methods of preparation
CN102873914A (en) * 2012-09-21 2013-01-16 维达纸业(浙江)有限公司 Edge embossing wheel for paper manufacture
DE102013108582A1 (en) * 2013-08-08 2015-02-12 Sandvik Surface Solutions Division Of Sandvik Materials Technology Deutschland Gmbh Method for creating structures on a circumferential surface
GB201406197D0 (en) * 2014-04-07 2014-05-21 Highcon Systems Ltd Polymeric rule die, and formulation therefor
CN104880907A (en) * 2015-06-08 2015-09-02 武汉华星光电技术有限公司 Mask device and mask system
CN106223569A (en) * 2016-01-15 2016-12-14 上海协承昌化工有限公司 A kind of composite floor board
US11541622B2 (en) * 2017-07-06 2023-01-03 Bobst Mex Sa Creasing machine, creasing cylinder for the creasing machine and method for creasing sheets
ES3040533T3 (en) * 2017-07-06 2025-11-03 Bobst Mex Sa A method of creasing sheets
CN108274193B (en) * 2018-01-12 2021-07-20 中国航发哈尔滨东安发动机有限公司 Processing method of insulating guide pillar with thin-wall nylon bush
CN118719914A (en) * 2024-05-17 2024-10-01 中国第一汽车股份有限公司 Power battery case production method and power battery case production system

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1182982A (en) * 1913-11-28 1916-05-16 Crump Company Machine for the manufacture of printers' rollers.
US3656999A (en) * 1969-11-24 1972-04-18 Grace W R & Co Coated roller and method of coating
US3794576A (en) * 1971-05-18 1974-02-26 American Can Co Epoxide blend radiation sensitive catalyst precursor
US4116594A (en) 1975-12-12 1978-09-26 Magna-Graphics Corporation Embossing apparatus having magnetic roller and flexible embossing plates therefor
US5180612A (en) * 1990-05-31 1993-01-19 Komori Currency Technology Uk Ltd. Apparatus and method for progressively coating a cylinder
EP0526867A1 (en) 1991-08-05 1993-02-10 Gerhardt International A/S Process for making a cylindrical embossing tool
US5650261A (en) * 1989-10-27 1997-07-22 Rohm And Haas Company Positive acting photoresist comprising a photoacid, a photobase and a film forming acid-hardening resin system
DE19756327A1 (en) 1997-12-18 1999-07-01 Polywest Kunststofftechnik Mold for rotary printing, coating or embossing of sheet-like materials and method for producing the mold
US6274294B1 (en) * 1999-02-03 2001-08-14 Electroformed Stents, Inc. Cylindrical photolithography exposure process and apparatus
US20020142143A1 (en) 2001-03-29 2002-10-03 Fort James Corporation Laser engraved embossing roll
WO2002086625A1 (en) 2001-04-20 2002-10-31 Fawcett, Alan, John Method and apparatus for the hardening of photopolymer plates
US6531188B1 (en) 1997-11-20 2003-03-11 E. I. Du Pont De Nemours And Company Method for multi-layered coating of substrates
US20030218274A1 (en) 2002-03-15 2003-11-27 The Procter & Gamble Company Elements for embossing and adhesive application
JP2004332772A (en) * 2003-04-30 2004-11-25 Ricoh Co Ltd Smoothing device for resin-coated roller surface
US20070042129A1 (en) * 2005-08-22 2007-02-22 Kang Gary Y Embossing assembly and methods of preparation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1278801B1 (en) * 1995-12-05 1997-11-28 Perini Fabio Spa EMBOSSING-LAMINATOR GROUP FOR GLUING EMBOSSED VEILS, RELATIVE METHOD AND PRODUCT OBTAINED
JP3955385B2 (en) * 1998-04-08 2007-08-08 Ａｚエレクトロニックマテリアルズ株式会社 Pattern formation method

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1182982A (en) * 1913-11-28 1916-05-16 Crump Company Machine for the manufacture of printers' rollers.
US3656999A (en) * 1969-11-24 1972-04-18 Grace W R & Co Coated roller and method of coating
US3794576A (en) * 1971-05-18 1974-02-26 American Can Co Epoxide blend radiation sensitive catalyst precursor
US4116594A (en) 1975-12-12 1978-09-26 Magna-Graphics Corporation Embossing apparatus having magnetic roller and flexible embossing plates therefor
US5650261A (en) * 1989-10-27 1997-07-22 Rohm And Haas Company Positive acting photoresist comprising a photoacid, a photobase and a film forming acid-hardening resin system
US5180612A (en) * 1990-05-31 1993-01-19 Komori Currency Technology Uk Ltd. Apparatus and method for progressively coating a cylinder
EP0526867A1 (en) 1991-08-05 1993-02-10 Gerhardt International A/S Process for making a cylindrical embossing tool
US5281511A (en) 1991-08-05 1994-01-25 Gerhardt International A/S Process for producing an embossing die in roll form
US6531188B1 (en) 1997-11-20 2003-03-11 E. I. Du Pont De Nemours And Company Method for multi-layered coating of substrates
DE19756327A1 (en) 1997-12-18 1999-07-01 Polywest Kunststofftechnik Mold for rotary printing, coating or embossing of sheet-like materials and method for producing the mold
US6616974B1 (en) * 1997-12-18 2003-09-09 Polywest Kunstofftechnik Saueressig & Partner Gmbh & Co. Kg Form for printing and a method of manufacturing such form
US6274294B1 (en) * 1999-02-03 2001-08-14 Electroformed Stents, Inc. Cylindrical photolithography exposure process and apparatus
US20020142143A1 (en) 2001-03-29 2002-10-03 Fort James Corporation Laser engraved embossing roll
WO2002086625A1 (en) 2001-04-20 2002-10-31 Fawcett, Alan, John Method and apparatus for the hardening of photopolymer plates
US20040157161A1 (en) 2001-04-20 2004-08-12 Wright Glen L. Method and apparatus for the hardening of photopolymer plates
US20030218274A1 (en) 2002-03-15 2003-11-27 The Procter & Gamble Company Elements for embossing and adhesive application
JP2004332772A (en) * 2003-04-30 2004-11-25 Ricoh Co Ltd Smoothing device for resin-coated roller surface
US20070042129A1 (en) * 2005-08-22 2007-02-22 Kang Gary Y Embossing assembly and methods of preparation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
English translation of the abstract for JP2004-332772. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9946159B2 (en) 2016-03-29 2018-04-17 The United States Of America As Represented By The Secretary Of The Army Lithographic fragmentation technology

Also Published As

Publication number Publication date
EP2007570A2 (en) 2008-12-31
US20090136679A1 (en) 2009-05-28
EP2007570B1 (en) 2010-03-24
WO2007118989A3 (en) 2008-02-28
DE602007005467D1 (en) 2010-05-06
CN101460298A (en) 2009-06-17
FR2899502A1 (en) 2007-10-12
WO2007118989A2 (en) 2007-10-25
FR2899502B1 (en) 2009-04-10
CN101460298B (en) 2011-09-07
ES2342850T3 (en) 2010-07-15

Similar Documents

Publication Publication Date Title
US8603583B2 (en) Embossing device, such as a cylinder or a sleeve
EP1731325B1 (en) Hollow cylindrical printing element
CN108349123B (en) Release webs and textured products
RU2637984C2 (en) Method of manufacture of microobjects of printed production and device for continuous manufacture of such products
KR20130009786A (en) Method for printing product features on a substrate sheet
CN1753794A (en) Printing sleeves with integrated printing surface
JP2022552604A (en) Printing plate and polymeric coating material for said printing plate
US11718085B2 (en) Method for thermally developing relief precursors
JP4749063B2 (en) Method for manufacturing sleeve printing original plate for laser engraving and apparatus for manufacturing sleeve printing original plate for laser engraving
CA1097875A (en) Synthetic resin cured in place rotary embossing counter and method of preparing same
JP4747264B2 (en) Method for manufacturing sleeve printing original plate for laser engraving and apparatus for manufacturing sleeve printing original plate for laser engraving
TWI725104B (en) Release web, method of forming release web, method of imparting texture to release web, substrate
JP2010502481A (en) Method for producing a printing blanket or sleeve comprising a specially processed printing surface
JP2005219378A (en) Cylindrical printing master
JP4109344B2 (en) Decorative plate manufacturing method
JP4956877B2 (en) Decorative FRP molded product manufacturing method, decorative FRP molded product with shaped sheet, and decorated FRP molded product
HK1253859B (en) Release webs and textured products
ITMI20001886A1 (en) CYLINDERS FOR FLEXOGRAPHIC PRINTING AND SLEEVES WITH CYLINDRICAL PRINTING LAYER IN SEAMLESS PHOTOPOLYMER, PHOTOPOLYMER COMPOSITION FOR T

Legal Events

Date Code Title Description
AS Assignment

Owner name: MACDERMID PRINTING SOLUTIONS EUROPE SAS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOUKAFTANE, CHOUAIB;BIAVA, HELENE;REINHART, CHRISTIAN;REEL/FRAME:022166/0337;SIGNING DATES FROM 20081223 TO 20090111

Owner name: MACDERMID PRINTING SOLUTIONS EUROPE SAS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOUKAFTANE, CHOUAIB;BIAVA, HELENE;REINHART, CHRISTIAN;SIGNING DATES FROM 20081223 TO 20090111;REEL/FRAME:022166/0337

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

LAPS Lapse for failure to pay maintenance fees

Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20211210